NPPES file of Aug 9, 2026

Cassidy Walker, FNP-C

Family Nurse Practitioner · Sioux City, IA

Cassidy Walker, FNP-C is a family nurse practitioner with a practice address in Sioux City, Iowa, and NPI 1144892902, issued on Jul 12, 2021. Check the license (Iowa F06211168, as entered in NPPES) with the Iowa board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1144892902
Name
Cassidy Walker
Credential
FNP-C
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
F06211168 IA
Self-reported in NPPES; status is on the state search
Practice location
3100 S Lakeport St, Sioux City, IA 51106
Phone
(712) 277-4442
Enumerated
Jul 12, 2021
Record last updated
Jul 12, 2021 (not updated in 5 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest family nurse practitioner records → All 1,971 in Iowa → Look up another NPI →

Also registered at 3100 S Lakeport St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Marcus Johnson, DPTPhysical Therapist1558094896
  2. Taylor Landholm, OTSports Medicine (Physical Medicine & Rehabilitation) Physician1720740947
  3. Kylee Lefebvre, FNP-CFamily Nurse Practitioner1952023087
  4. Zackery Olson, DPTPhysical Therapist1467050088
  5. John Stollberg, OTD, OTR/L, CHTOccupational Therapist1295112340

Verify Cassidy Walker in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Iowa board licenses this profession
    Search for license F06211168    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Iowa license search

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Cassidy Walker among 1,971 family nurse practitioner records in Iowa

Cassidy Walker, FNP-C is one of 1,971 family nurse practitioner records with a practice address in Iowa. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2021, is newer than 67% of them.

  • NPI issued2021 · 67% of these records are older, 25% newer
  • In a Medicare fileNo · 84% of these records are
  • In the CMS Doctors and Clinicians fileNo · 71% of these records are
  • Record last updated2021 · 43% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

82 family nurse practitioner records list a practice address in Sioux City

They are 82 of the 1,486 NPPES records with a practice address in Sioux City, and 1,971 family nurse practitioner records in Iowa. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 1,971 in Iowa → Every provider in Sioux City → Family Nurse Practitioner nationwide →

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Samantha Cunningham, APRNSioux City, IA 511061134551880
  2. Mary Gengler, FNPSioux City, IA 511061003271636
  3. Patricia Graham, ED.D, FNP-BC, MSNSioux City, IA 511061710265764
  4. Kelly Hancock, ARNP DNP ARNP FNP BCSioux City, IA 511061588895023
  5. Carole LefloreSioux City, IA 511061417327693
  6. Carole List, ARNPSioux City, IA 511061548246838
  7. Sally McMahon, ARNPSioux City, IA 511061073787255
  8. Myra Morris, ARNPSioux City, IA 511061609146471

Common questions

What is Cassidy Walker, FNP-C's NPI number?

Cassidy Walker, FNP-C's National Provider Identifier (NPI) is 1144892902, issued on Jul 12, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Cassidy Walker, FNP-C located?

The NPPES record lists a practice address at 3100 S Lakeport St, Sioux City, IA, 51106. Phone: (712) 277-4442. Providers update this record themselves, so call before visiting.

How can I verify Cassidy Walker, FNP-C's license?

NPPES lists Iowa license number F06211168, as entered by the provider. Search the Iowa board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.